BALLSTON SPA, a village of New York, U.S.A., 7m. S. of Saratoga Springs, on the main line of the Delaware and Hud son railroad; the county-seat of Saratoga county. The population in 193o was 4,591. Ballston Spa has long been a health resort. It lies among the foothills of the Adirondack mountains, and has many fine chalybeate and other springs, rising more than 7o0ft, through solid rock. There are 26 factories, manufacturing a variety of products. The village was settled about 1787 by the grandfather of Stephen A. Douglas, and was incorporated in 1855. It was named after the Rev. Eliphalet Ball, an early settler. Its daily paper, the Journal, was established in 1798. The Sara toga county law library is here.